From: Mike Kravetz <mike.kravetz@oracle.com>
To: Alexandre Ghiti <alex@ghiti.fr>,
linux@armlinux.org.uk, catalin.marinas@arm.com,
will.deacon@arm.com, tony.luck@intel.com, fenghua.yu@intel.com,
ralf@linux-mips.org, paul.burton@mips.com, jhogan@kernel.org,
jejb@parisc-linux.org, deller@gmx.de, benh@kernel.crashing.org,
paulus@samba.org, mpe@ellerman.id.au, ysato@users.sourceforge.jp,
dalias@libc.org, davem@davemloft.net, tglx@linutronix.de,
mingo@redhat.com, hpa@zytor.com, x86@kernel.org, arnd@arndb.de,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org,
linux-mips@linux-mips.org, linux-parisc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-sh@vger.kernel.org,
sparclinux@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: [PATCH v4 03/11] hugetlb: Introduce generic version of set_huge_pte_at
Date: Thu, 26 Jul 2018 12:00:06 -0700 [thread overview]
Message-ID: <b9341c15-38d5-8a6f-2e51-bae3f6593880@oracle.com> (raw)
In-Reply-To: <20180705110716.3919-4-alex@ghiti.fr>
On 07/05/2018 04:07 AM, Alexandre Ghiti wrote:
> arm, ia64, mips, powerpc, sh, x86 architectures use the
> same version of set_huge_pte_at, so move this generic
> implementation into asm-generic/hugetlb.h.
>
Just one comment below, otherwise:
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
> Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
> ---
> arch/arm/include/asm/hugetlb-3level.h | 6 ------
> arch/arm64/include/asm/hugetlb.h | 1 +
> arch/ia64/include/asm/hugetlb.h | 6 ------
> arch/mips/include/asm/hugetlb.h | 6 ------
> arch/parisc/include/asm/hugetlb.h | 1 +
> arch/powerpc/include/asm/hugetlb.h | 6 ------
> arch/sh/include/asm/hugetlb.h | 6 ------
> arch/sparc/include/asm/hugetlb.h | 1 +
> arch/x86/include/asm/hugetlb.h | 6 ------
> include/asm-generic/hugetlb.h | 8 +++++++-
> 10 files changed, 10 insertions(+), 37 deletions(-)
>
> diff --git a/arch/arm/include/asm/hugetlb-3level.h b/arch/arm/include/asm/hugetlb-3level.h
> index d4014fbe5ea3..398fb06e8207 100644
> --- a/arch/arm/include/asm/hugetlb-3level.h
> +++ b/arch/arm/include/asm/hugetlb-3level.h
> @@ -37,12 +37,6 @@ static inline pte_t huge_ptep_get(pte_t *ptep)
> return retval;
> }
>
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> - pte_t *ptep, pte_t pte)
> -{
> - set_pte_at(mm, addr, ptep, pte);
> -}
> -
Since <asm-generic/hugetlb.h> is not directly included in this file,
I had to search around in the #include dependency chain to look for
it. It makes me just a tiny bit nervous, but since it compiled, I'm
sure there is not an issue.
--
Mike Kravetz
> static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
> unsigned long addr, pte_t *ptep)
> {
> diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
> index 4af1a800a900..874661a1dff1 100644
> --- a/arch/arm64/include/asm/hugetlb.h
> +++ b/arch/arm64/include/asm/hugetlb.h
> @@ -60,6 +60,7 @@ static inline void arch_clear_hugepage_flags(struct page *page)
> extern pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
> struct page *page, int writable);
> #define arch_make_huge_pte arch_make_huge_pte
> +#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
> extern void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> pte_t *ptep, pte_t pte);
> extern int huge_ptep_set_access_flags(struct vm_area_struct *vma,
> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> index afe9fa4d969b..a235d6f60fb3 100644
> --- a/arch/ia64/include/asm/hugetlb.h
> +++ b/arch/ia64/include/asm/hugetlb.h
> @@ -20,12 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
> REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
> }
>
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> - pte_t *ptep, pte_t pte)
> -{
> - set_pte_at(mm, addr, ptep, pte);
> -}
> -
> static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep)
> {
> diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
> index 53764050243e..8ea439041d5d 100644
> --- a/arch/mips/include/asm/hugetlb.h
> +++ b/arch/mips/include/asm/hugetlb.h
> @@ -36,12 +36,6 @@ static inline int prepare_hugepage_range(struct file *file,
> return 0;
> }
>
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> - pte_t *ptep, pte_t pte)
> -{
> - set_pte_at(mm, addr, ptep, pte);
> -}
> -
> static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep)
> {
> diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
> index 28c23b68d38d..77c8adbac7c3 100644
> --- a/arch/parisc/include/asm/hugetlb.h
> +++ b/arch/parisc/include/asm/hugetlb.h
> @@ -4,6 +4,7 @@
>
> #include <asm/page.h>
>
> +#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
> void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> pte_t *ptep, pte_t pte);
>
> diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
> index a7d5c739df9b..0794b53439d4 100644
> --- a/arch/powerpc/include/asm/hugetlb.h
> +++ b/arch/powerpc/include/asm/hugetlb.h
> @@ -132,12 +132,6 @@ static inline int prepare_hugepage_range(struct file *file,
> return 0;
> }
>
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> - pte_t *ptep, pte_t pte)
> -{
> - set_pte_at(mm, addr, ptep, pte);
> -}
> -
> static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep)
> {
> diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
> index f6a51b609409..bc552e37c1c9 100644
> --- a/arch/sh/include/asm/hugetlb.h
> +++ b/arch/sh/include/asm/hugetlb.h
> @@ -25,12 +25,6 @@ static inline int prepare_hugepage_range(struct file *file,
> return 0;
> }
>
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> - pte_t *ptep, pte_t pte)
> -{
> - set_pte_at(mm, addr, ptep, pte);
> -}
> -
> static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep)
> {
> diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
> index 59d89b52ccb7..16b0c53ea6c9 100644
> --- a/arch/sparc/include/asm/hugetlb.h
> +++ b/arch/sparc/include/asm/hugetlb.h
> @@ -12,6 +12,7 @@ struct pud_huge_patch_entry {
> extern struct pud_huge_patch_entry __pud_huge_patch, __pud_huge_patch_end;
> #endif
>
> +#define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
> void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> pte_t *ptep, pte_t pte);
>
> diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
> index 996ce8e15365..554d5614b375 100644
> --- a/arch/x86/include/asm/hugetlb.h
> +++ b/arch/x86/include/asm/hugetlb.h
> @@ -27,12 +27,6 @@ static inline int prepare_hugepage_range(struct file *file,
> return 0;
> }
>
> -static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> - pte_t *ptep, pte_t pte)
> -{
> - set_pte_at(mm, addr, ptep, pte);
> -}
> -
> static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
> unsigned long addr, pte_t *ptep)
> {
> diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
> index c697ca9dda18..ee010b756246 100644
> --- a/include/asm-generic/hugetlb.h
> +++ b/include/asm-generic/hugetlb.h
> @@ -47,8 +47,14 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
> {
> free_pgd_range(tlb, addr, end, floor, ceiling);
> }
> +#endif
>
> -
> +#ifndef __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT
> +static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
> + pte_t *ptep, pte_t pte)
> +{
> + set_pte_at(mm, addr, ptep, pte);
> +}
> #endif
>
> #endif /* _ASM_GENERIC_HUGETLB_H */
>
next prev parent reply other threads:[~2018-07-26 19:01 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-05 11:07 [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture primitives Alexandre Ghiti
2018-07-05 11:07 ` [PATCH v4 01/11] hugetlb: Harmonize hugetlb.h arch specific defines with pgtable.h Alexandre Ghiti
2018-07-26 18:40 ` Mike Kravetz
2018-07-05 11:07 ` [PATCH v4 02/11] hugetlb: Introduce generic version of hugetlb_free_pgd_range Alexandre Ghiti
2018-07-26 18:45 ` Mike Kravetz
2018-07-05 11:07 ` [PATCH v4 03/11] hugetlb: Introduce generic version of set_huge_pte_at Alexandre Ghiti
2018-07-26 19:00 ` Mike Kravetz [this message]
2018-07-05 11:07 ` [PATCH v4 04/11] hugetlb: Introduce generic version of huge_ptep_get_and_clear Alexandre Ghiti
2018-07-26 19:02 ` Mike Kravetz
2018-07-05 11:07 ` [PATCH v4 05/11] hugetlb: Introduce generic version of huge_ptep_clear_flush Alexandre Ghiti
2018-07-26 19:03 ` Mike Kravetz
2018-07-05 11:07 ` [PATCH v4 06/11] hugetlb: Introduce generic version of huge_pte_none Alexandre Ghiti
2018-07-26 19:04 ` Mike Kravetz
2018-07-05 11:07 ` [PATCH v4 07/11] hugetlb: Introduce generic version of huge_pte_wrprotect Alexandre Ghiti
2018-07-26 19:05 ` Mike Kravetz
2018-07-05 11:07 ` [PATCH v4 08/11] hugetlb: Introduce generic version of prepare_hugepage_range Alexandre Ghiti
2018-07-26 19:05 ` Mike Kravetz
2018-07-05 11:07 ` [PATCH v4 09/11] hugetlb: Introduce generic version of huge_ptep_set_wrprotect Alexandre Ghiti
2018-07-26 19:10 ` Mike Kravetz
2018-07-05 11:07 ` [PATCH v4 10/11] hugetlb: Introduce generic version of huge_ptep_set_access_flags Alexandre Ghiti
2018-07-26 19:12 ` Mike Kravetz
2018-07-05 11:07 ` [PATCH v4 11/11] hugetlb: Introduce generic version of huge_ptep_get Alexandre Ghiti
2018-07-26 19:13 ` Mike Kravetz
2018-07-09 14:16 ` [PATCH v4 00/11] hugetlb: Factorize hugetlb architecture primitives Michal Hocko
2018-07-20 18:37 ` Alex Ghiti
2018-07-21 0:24 ` Mike Kravetz
2018-07-26 11:46 ` Michael Ellerman
2018-07-26 19:16 ` Mike Kravetz
2018-07-27 6:51 ` Alexandre Ghiti
2018-07-23 14:00 ` Michael Ellerman
2018-07-23 17:41 ` Alex Ghiti
2018-07-26 5:41 ` Alex Ghiti
2018-07-26 12:59 ` Helge Deller
2018-07-26 17:01 ` Alex Ghiti
2018-07-26 19:13 ` Alex Ghiti
2018-07-26 21:08 ` Helge Deller
2018-07-26 15:13 ` LEROY Christophe
2018-07-26 16:46 ` Alex Ghiti
2018-07-25 0:34 ` Paul Burton
2018-07-25 7:38 ` Alexandre Ghiti
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